UNESP - São Paulo State University at Rio Claro, Av. 24-A, 1515, Rio Claro, SP 13506-900, Brazil.
Gait Posture. 2012 Feb;35(2):175-9. doi: 10.1016/j.gaitpost.2011.09.002. Epub 2011 Oct 1.
The current study addressed the role of visual information in the control of locomotion in people with Parkinson's disease. Twelve healthy individuals and 12 mild to moderate Parkinson's disease patients were examined while walking at self-selected velocities, under three visual sampling conditions: dynamic (normal lighting), static (static visual samples) and voluntary visual sampling. Subjects wore liquid crystal glasses for visual manipulation. Outcome measures included spatial-temporal parameters, braking and propulsive impulses, number of samples and total duration of voluntary visual samples. Interaction between groups and visual conditions was not observed for kinematic parameters or braking and propulsive impulses. There were no significant differences between groups for voluntary visual sampling variables. These findings suggest that the visual control of locomotion in Parkinson's disease patients was similar to that observed in controls. Furthermore, Parkinson's disease patients were not more dependent on visual information than healthy individuals for the locomotion control.
本研究旨在探讨视觉信息在帕金森病患者运动控制中的作用。12 名健康个体和 12 名轻至中度帕金森病患者在三种视觉采样条件下(动态[正常照明]、静态[静态视觉样本]和自愿视觉采样)以自我选择的速度行走时接受了检查。受试者佩戴液晶眼镜进行视觉操作。测量结果包括时空参数、制动和推进冲量、样本数量和自愿视觉样本的总持续时间。在运动学参数或制动和推进冲量方面,组间和视觉条件之间没有观察到交互作用。在自愿视觉采样变量方面,两组之间没有显著差异。这些发现表明,帕金森病患者的运动视觉控制与对照组观察到的相似。此外,帕金森病患者在运动控制方面对视觉信息的依赖程度并不高于健康个体。